Sash holder and lock.



PATENTED OCT. 31, 1905.

F. W. QUITMAN. SASH H-OLDER AND LOOK.

APPLICATION FILED JAN. 27, 1903.

2 SHEBTB-SHBIJT 1.

q/Vimomo No. 803,430. PATENTED OCT. 31, 1905. F. W. QUITMAN.

SASH HOLDER AND LOCK.

APPLICATION FILED JAN. 27, 1903.

2 SHEETS-SHEET 2.

Snwuloz I d. LU. Qmr c. minus;

L Quanta UNITED sr'ArEs PATENT OFFICE.

SASH HOLDER 'AND LOCK.

Specification of Letters Patent.

Patented Oct. 31, 1905.

Application filed January 27, 1903. Serial No. 140,778.

certain new and useful Invention in Sash Holders and Locks Combined; andI declare the following to be a full, clear, and exact description ofthe same, such as will enable others skilled in the art to which itappertains to make and use the invention, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

Figure l is a side view of my invention with cover-plate removed. Fig. 2is a front elevation of the invention. Fig. 3 is a detail perspectiveview of one of the lever-catches. Fig. 4 is a side view of the inventionfrom the inner side. Fig. 5 is a detail perspective view of the casing.Fig. 6 is a bottom plan view of the cover-plate. Fig. 7-is a face viewof the lock with the cover-plate removed and illustrating the positionsassumed by the catchlevers when moved to one side until one of suchlevers engages the end stop-wall of the casing, and Fig. 8 is a similarview showing the catchlevers moved in opposite directions or retracteduntil they both engage the end stopwalls of the casing.

The invention has relation to sash-holders and friction-locks; and itconsists in the novel construction and combinations of parts, ashereinafter set forth.

In the accompanying drawings the letter a designates the casing, havingthe attachmentears 6, perforated at c for the fastening-screws, andrabbeted on their inner portions for the reception of the cover-plate(Z, which is perforated at e to seat the end of the pivot-post f and atg to receive the fastening-screw h, which passes into the end of thepivot-post 7c. The pivot-posts g and is are located at the middleportion of the casing side by side, just inside the opening Z, throughwhich the lever or handle projections m of the pivoted levercatches atproject for operation by the thumb and finger. Normally the handleprojections diverge, the catch-heads t of the lever-catches, whichextend through an opening at the opposite side of the casing, being heldin forcible engagement with each other by means of the equalizedcoil-springs 8, each of said springs being held at one end in a pocketor seat a of the casing between its end wall and a short inturned flangea, bounding the opening Z. At its other end each spring engages a lug rof the catch-head t. The catch-head of each lever-catch is provided witha dovetail seat c, in which is placed a cam-segment 2, of indiarubber ofcrescent-like form, having its convex face presenting outward beyond theline of the plate and having its concave inner surface held against theconvex bottom of the seat o by means of the end flanges q of said seat.These end flanges are designed to have a little pliability to providefor adjustment when necessary. The cover-plate (Z is formed with insidelugs w, which engage the ends of the pockets nand serve when thepivot-lug and fastening-screw are in place to hold the inner end of thespring in place in its seat 72 its outer end being held by the lug 7'from displacement.

The catch-heads of the lever-catches are normally held together side byside by means of the equalized springs, so that they present the convexor cam-form holding-segments side by side in a balanced position. WVhilethe catchlevers are twin-like or similar, they are oppositely turned,and their catch-heads have rounded inner ends g, which engage each otherand which move easily upon each other under the automatic action of thedevice.

WVhen the handle projections of the catchlevers are brought toward eachother strongly, the catch-heads are moved from each other and retractedwithin the holding-plate so that their cam-segments do not engage thejamb of the window-frame, and the sash can be easily moved up or down,as may be desired; but when the sash is raised and the levercatches arelet loose it is held up by the auto matic action of the lowercatch-head, whose cam forcibly engages the jamb or side strip of thewindow-frame, at the same time pressing its fellow catch-head upward,while its own cam-surface is brought toward the middle of the plate intostrong action.

When the sash is down, it is readily locked in position by raising thehandle projection of the upper lever-catch, thus forcing its catch-headdownward toward the middle of the plate and its cam outward into strongfrictional contact with the window-frame.

It will be noted that the catch-heads of the levers are adapted formovement away from each other through an arc of about fiteeu degreesuntil they both abut simultaneously against the horizontal endstop-walls a, forming a rigid connection with the window-sash for movingthe same in either direction without further movement of said levers. Inthis position of the catch-heads retracted the straight handleextensions m, which have an angular relation to their work-arms of aboutone hundred and fifty degrees, assume a parallel horizontal positionnear each other for convenient use in moving the sash, the catch-headsbeing then in equally-retracted position.

As shown in Fig. 7 of the drawings, the contacting catch-headstare inrespective engagement with the end stop-wall of the casing and with thewindow-frame, whereby the strain or weight of the sash is transmittedthrough such catch-heads and the casing to the window-frame and thepivots of the catch-levers relieved.

Having described this invention, what I claim, and desire to secure byLetters Patent, 1s-

1. Asash lock and holder having in combination a casing provided with anend stopwall, and pivoted lever-catches having contacting catch-headsone of which has engagement with said end stop-wall and the otherengagement with the first catch-head and with the window-frame, wherebythe weight of the sash is transmitted through the catchheads and thecasing to the window-frame,

substantially as specified.

2. 'A'sash lock and holder having in combination a casing provided withend stop-walls, and pivoted spring-acting lever-catches havingcatch-heads provided with rounded adjacent inner faces engaging andmovable upon each other, said catch-heads while in contact havingengagement respectively with an end wall of the casing and with thewindow-frame, substantially as specified.

3. A sash lock and holder having in combination a casingp'rovided withend walls, pivoted mutually reciprocatory levercatches having work-armsprovided'with catch-heads having'rounded adjacent inner cam facesengaging and movable upon each other, said catches being adaptedfor-mutual 'movement to one side while in contact, and having straighthandle extensions of angular relation to their work-arms ofaboutone'hundred and fifty degrees,and'equalize'd springs serving tokeep'the catch-heads normally in contact, substantially as specified.

In testimony whereof I aflixmy signature in presence of two witnesses.

FREDERICK W. QUITMAN.

Witnesses:

GUsTAv A. MOELLER, JOSEPH R. TAYLOR.

